| Index | Horn Lake | Mississippi | National |
| Average Test Scores | 32% | 40% | 48% |
| Student/Teacher ratio | 18:1 | 16:1 | 16:1 |
| Total public schools | 5 | 893 | 79,221 |
| Total private schools | n/a | 206 | 24,874 |
| Total post-secondary schools | n/a | 68 | 7,963 |
| Index | Horn Lake | Mississippi | National |
| Completed 8th grade | 79.6% | 78.6% | 84.3% |
| Completed high school | 78.4% | 76.7% | 83.0% |
| Completed some college | 51.6% | 52.5% | 59.4% |
| Completed associate degree | 23.7% | 29.8% | 38.5% |
| Completed bachelors | 13.9% | 21.0% | 30.3% |
| Completed masters | 4.0% | 7.9% | 11.5% |
| Completed professional degree | 0.5% | 2.2% | 3.3% |
| Completed doctorate | 0.2% | 0.9% | 1.3% |
There are a total of 5 public schools, n/a private schools and n/a post-secondary schools in Horn Lake. Using the proficiency score averages, the average test scores for Horn Lake, MS schools is 32%. The average student to teacher ratio is 18:1. In Horn Lake, MS, an average of 79.6% of students have completed 8th grade and an average of 78.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hernando, MS | 16,206 | 71% | 47.7% |
| Olive Branch, MS | 38,270 | 62% | 28.9% |
| Walls, MS | 1,415 | 50% | 4.9% |
| Southaven, MS | 55,026 | 50% | 4.8% |
| West Memphis, AR | 24,656 | 27% | 43.0% |
| Horn Lake, MS | 27,234 | 32% | 34.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Elmira, NY | 27,236 | 30% | 36.9% |
| Mint Hill, NC | 27,258 | 43% | 11.5% |
| New Smyrna Beach, FL | 27,207 | 59% | 22.0% |
| Ramsey, MN | 27,201 | 63% | 30.7% |
| Lake Jackson, TX | 27,269 | 51% | 6.0% |
| Horn Lake, MS | 27,234 | 32% | 34.0% |
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